I'm really surprised that nobody has mentioned the Streetfighter entries in this years International Hill Climb event. Bruno Langlois and Eddie Tafoya took 3rd and 4th repetitively in their class. They came in right behind the Multistradas which I thought was impressive.
I noticed his exhaust on the PPIHC website too. Looks like a Double Dog to me. Great pictures by the way. I was surprised to see him putting a leg out motocross style on some of the corners. I've never seen anyone do that on a SF.